| ITF Korea F5 | 2018/08/21 03:00 | Jumpei Yamasaki v Oh-Hee Kwon | 4-6,4-6 |
| ITF Korea F4 | 2018/08/16 01:00 | Seong-Gook Oh v Oh-Hee Kwon | 6-4,6-4 |
| ITF Korea F4 | 2018/08/14 02:30 | Oh-Hee Kwon v Seong Taek Im | 6-3,6-4 |
| ITF Korea F3 | 2018/06/22 03:00 | Yunseong Chung v Oh-Hee Kwon | 6-4,6-1 |
| ITF Korea F3 | 2018/06/20 02:30 | Oh-Hee Kwon v Seong Chan Hong | 7-5,6-4 |
| ITF Korea F3 | 2018/06/19 06:35 | Cing-Yang Meng v Oh-Hee Kwon | 1-6,2-6 |
| ITF Korea F3 Qual | 2018/06/18 06:30 | Hyeong Don Kim v Oh-Hee Kwon | 2-6,2-6 |
| ITF Korea F3 Qual | 2018/06/17 04:30 | Seong Jae Han v Oh-Hee Kwon | 4-6,1-6 |
| ITF Korea F5 | 2018/08/21 03:00 | Hong Chung v Yeongseok Jeong | 6-1,7-6 |
| ITF Korea F5 | 2018/08/20 01:00 | Hong Chung v Jae Won Yun | 6-4,6-3 |
| Challenger Gwangju | 2018/08/14 06:30 | Duckhee Lee v Hong Chung | 7-6,6-2 |
| ITF Korea F3 | 2018/06/19 06:35 | Hong Chung v Shintaro Imai | 6-7,6-3,1-6 |
| ITF Korea F2 | 2018/06/13 06:45 | Hong Chung v Chan-Yeong Oh | 2-6,2-6 |
| ITF Korea F1 | 2018/06/08 03:30 | Takuto Niki v Hong Chung | 6-1,6-0 |
| ITF Korea F1 | 2018/06/07 01:00 | Jae-Won Choi v Hong Chung | 6-2,4-6,5-7 |
| ITF Korea F1 | 2018/06/05 01:00 | Alec Adamson v Hong Chung | 5-7,6-2,2-6 |